Children are striking for the first time in protest at being “over-tested” and “over-worked” by what parents say is an exam-dominated school curriculum.
More than 40,000 parents have signed up to the action, describing the “testing regime” for SATs as “shambolic”.
The Key Stage 1 testing for six and seven-year-olds has been made tougher this year in an attempt to drive up standards.
Some parents are keeping their children off school for “a day of educational fun instead” and a website run by the Let Our Kids Be Kids campaign includes posts from hundreds of groups of parents who say their children are taking part in another activity rather than attending classes.
The campaign, which is coordinating the kids’ strike, has written to Education Secretary Nicky Morgan calling for an “end to SATs now”.